Clamping or binding mechanism.



W. J. WRIGHT. V OLAMPING 0R BINDING MECHANISM.

APPLICATION FILED OCT. 3, 1908.

930,258. Patented Aug. 3, 1909.

2 SHEETS-SHEET 1.

HIIIE I -11mm.

ullllllllu ANDREW a. mum 00.. mTo-ufmummem. wnwnn'mn. u. c.

- W; J. WRIGHT. GLAMPING OR BINDING MECHANISM. APPLICATION FILED 00w. a,1908.

930,258. Patented Aug. 3, 1909.

10 i I 2 SHBETSfS HEET 2.

111.111 wnupun 1111 "Emma PATENT OFFICE.

WILLIAM J. WRIGHT, OF CHICAGO, ILLINOIS.

CLAMPING OR BINDING MECHANISM.

Specification of Letters Patent.

Patented Aug. 3, 1909.

Application filed October 3, 1908. Serial No. 455,995.

T 0 all whom it may concern:

Be it known that I, WILLIAM J. WRIGHT, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Clamping or BindingMechanism, of which the following is a description.

My invention relates to means especially ap licable to a paper cuttingmachine for ho ding the paper during the cutting opera tion.

The object of my invention is to provide a simple and efficientmechanism for controlling the pressure exerted by the clamp or binder asin a paper cutting machine for controlling the pressure upon the paperduring the cutting operation and also for preventing undesirable shocksto the driving portion of the mechanism when the parts are returning totheir normal positions after the cutting operation is completed.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described, and moreparticularly pointed out in the claims.

In the accompanying drawings wherein like or similar referencecharacters indicate like or corresponding parts, Figure 1, is an endelevation of a machine equipped with my invention. Fig. 2, is a sectiontaken substantially on line 22 of Fig. 3. Fig. 3, is a section takensubstantially on line 33 of Fig. 1. Fig. 4, is an enlarged fragmentarysection taken substantially on line 44 of Fig. 2. Fig. 5, is a viewsimilar to that shown in Fig. 4, but showing a modified form of mydevice. Fig. 6, is a partial sectional view of a modified form of myimproved mechanism removed from the remainder of the structure to moreclearly show the construction. Fig.

7, is a section takensubstantially on line 77 of Fig. 6.

In the form shown in the drawings, my improvement is shown, as appliedto the cl amping mechanism of a paper cutting machine in which l1 is theframe, 2, the bed plate, 3, the cutting knife, guided at its ends by theslides 44.

5, is the clamping bar, arranged to move vertically inthe opening 6, tohold the paper or other stock in position upon the bed plate during thecutting operation. The usual or any preferred means may be. employed foroperating the cutting knife. In the form The gears 8, are each keyed orotherwise rigidly secured to a shaft 9, mounted in suitable bearingsupon the frame 1, all in the usual or any preferred manner.

The clamp 5, is preferably provided at each end with a connecting rod10, attached at its 7 lower end to a crank pin 11 upon a gear 12. Thegears 12, are each rigidly secured to ashaft 14 arranged to movelaterally in the frame and for this purpose the shaft 14 is rotatablymounted in suitable bearings at the extremities of the links 15-15 uponthe shaft 9 connecting the shafts 9 and 14 so that the shaft 14 may riseand fall to compensate for the thickness of the paper or other stockengaged by the clamping mechanism without permitting the gears 8 and 12,which are of suitable size to mesh with each other to transmit powerfrom the shaft 14 to the shaft 9, to become disengaged from each other.

In the form shown, power to operate the machine is transmitted to ashaft 16, rot-at..- bly mounted upon the frame 11 thence by the clutch17 to a gear 18 upon the shaft 16. The gear 18 meshes with a gear 19upon a shaft 20. able bearings near the extremities of suitable links21-21 upon the shaft 16 arranged to connect the shaft 20 to the shaft16. The shaft 20 is also held in suitable relation to the shaft 14 bysuitable links 22-22 one end of each of which en ages the shaft 20 andthe opposite end the shaft 14 so that the gears 2324 rigidly mountedupon the shafts 20 and 14 respectively will always be held in suitablerelation to each other to transmit motion from the shaft 20 to the shaft14.

The particular form and proportions of the gears and of the variousconnections are preferably of the usual or any well known constructionand as they form no part of my present invention are believed to requireno further description.

As thus constructed the pressure exerted by the clamp 5, upon the stockin the machine will obviously amount to the combined weights of thevarious parts held in suspension during the clamping operation and myinvention is for the purpose of increasing this clamping effect as maybe desired. My invention also reduces the shock upon the shaft The shaft20 is mounted in suit- 14 and other portions of the mechanismv caused bythe return of the shaft 14 to the su porting brackets 25 when the clampis re eased. In the form shown my improve ment comprises a lever 26pivotally mounted upon the frame 1, as at 27, with its free end arrangedto frictionally engage a suitably formed segment 28, or other convenientmeans attached to the frame 1. A hearing 29 is fitted to the shaft 20and pivotally or otherwise suitably attached to the lever 26 as at 30 sothat the movement of the shaft 20 during the clamping operation abovedescribed will move the free end of the lever 26. The frictionalengagement of the free end of the lever 26 with the segment 28 willobviously tend to yieldingly resist the lateral movements of the shaftsduring the clamping operation both when the shafts are raising at thecommencement of the clamping operation and when they are returning totheir normal ositions.

Any suitab e friction mechanism may be provided to resist the freemovement of the arm 26. In the form shown in Fig. 4, a stud or shaft 31is provided near the free end of the arm 26 and a pinion 32 is rotatablymounted upon the stud in position to engage a series of suitable teethformed upon the segment. A collar 33 is provided at each side of thepinion 32 with a washer 34 of felt, leather, or other suitablefrictional material positioned between the face of each collar and theend of the pinion to frictionally enga e the pinion between the collars.The col are 33 are each splined or otherwise secured against rotation uon the shaft 31, but free to move longitudina ly thereon and a nut 35 orother suitable means is provided to control the position of the collarsupon the shaft and to force the collars together to control theirfrictional enga ement with the pinion 32. As shown a roller 36 isrotatably mounted upon a stud 38 at the inner face of the segment 28,and a link 37 is provided to connect the free end of the stud 38 and thefree end of the shaft 31.

In the form shown, in Fig. 5, the segment 28 is merely a smooth curvedbar and the lever 26 is provided with a pair of studs 3939 one at eachside of the segment connected by a link 40. The studs 3939 are eachpreferably provided with a spring 41 and nut 42 to resiliently press thelink 40 to ward the arm 26 to clamp the segment 28 between arm and link.This form, while somewhat simpler than the form previously described,has not produced as satisfactory results in practice.

In the form shown in Figs. 6 and 7, the segment 28 is omitted and theshaft 43 is rigidly mounted in suitable brackets 44 upon the bed plate2. A disk 45 preferably provided with a central hub 46 is mounted uponthe shaft 43 and keyed or otherwise rigidly secured thereto; a companiondisk 47 mounted upon the hub. 46 and a nut or other suit-' able means 48is provided near the extremity of the hub to force the disk 47 intocontact with the disk 45. As shown a spring or other suitable resilientmeans 49 is positioned between the nut 48 and disk 47 and if desired awasher 50, of felt, leather, or other friction material is positionedbetween the disks. Anarm 51 is rigidly secured to the disk 47 with itsfree end connected to the free end of the lever 26 by a link 52, thusproviding a very convenient and satisfactory resisting mechanism for thefree end of the lever 26 In operation the parts of my device are soproportioned and constructed that when no material is in position on thebed or table 2,

to be engaged by the clamp 5 the clamp will merely move up and down inits guides, its lower face just coming into contact with the bed 2, atthe lower limit of its movement, the shaft 14 not moving from itsposition in the brackets 25. bed ortable 2 in position to be operatedupon, the clamp 5 engages the stock in its downward movement and isthereby arrested before it reaches the lower limit of its travel. tationof the shaft 14 will obviously raise it from the brackets 25, its wholeweight being supported and transmitted by the rods 10-10 to the clamp 5to hold the stock in position upon the bed 2; mechanism is applied ashereinbefore de scribed to resist the upward movement of the shaft 14thereby increasing the engaging pressure of the clamp 5 and also tendingto When stock is placed upon the It" hen this occurs the continued ro-My improved partially support the shaft and associated parts to reducethe shock incident to the return of the shaft to its position upon thebrackets 25 and thereby increase the smooth ness of the operation of themechanism. The manner in which my mechanism accomplishes this end isbelieved to be sufficiently set forth in the foregoing description andno further explanation of the same is required;

Having thus described my improvement it is obvious that variousimmaterial modifications may be made in my device without departing fromthe spirit of my invention, hence I do not wish to be understood aslimiting myself to the exact form or construcble shaft, and intermediatemeans between said part and shaft for reciprocating said part, incombination with means'for directing the. lateral movements of saidshaft, and means adapted to resist said lateral movements.

2. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirecting the lateral movements of said shaft, and means connected tosaid shaft adapted to resist said lateral movement.

3. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirecting the lateral movements of said shaft, and means adapted toyieldingly resist said lateral movements.

4. In a device of the kind described, a reciprocating part, a laterallymovable rotatableshaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means for directing the lateral movements of said shaft, and friction mechanismconnected to said shaft adapted to resist said lateral movements.

5. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirectin the lateral movements of said shaft, and a lever connected tosaid shaft and provided with friction mechanism at its free end adaptedto resist said lateral movements.

6. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means for directing the lateral movements of said shaft, and means adapted to resistsaid lateral movements, and mechanism for adjusting the resistance ofsaid resisting means.

7. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirecting the lateral movements of said shaft, friction mechanismconnected to said shaft adapted to resist said lateral movements andmeans, for adjusting said friction mechanism to control said resistance.

8. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirecting the lateral movements of said shaft, a lever connected to saidshaft, friction mechanism connected to the free end of said leveradapted to resist its movement and thereby the lateral movements of saidshaft, and means for adjusting said friction mechanism to control saidresistance.

9. In a device of the kind described, a reciprocating part, a laterallymovable rotatable shaft, and intermediate means between said part andshaft for reciprocating said part, in combination with means fordirecting the lateral movements of said shaft, a lever connected to saidshaft, a member rotatably connected to the free end of said lever and astationary part cooperating with said member whereby a movement of saidlever will rotate said member, and friction mechanism adapted to resistthe rotation of said member.

10. In a device of the kind described, a reciprocating part, a laterallymovable shaft, and intermediate means between said part and shaft forreciprocating said part, in combination with means for directing thelateral movements of said shaft, a lever connected to said shaft, apinion rotatably mounted at the end of said lever, and a stationarysegment cooperating with said pinion whereby a movement of said leverwill rotate said pinion, and friction mechanism adapted to resist therotation of said pinion.

In testimony whereof, I have hereunto signed my name in the presence oftwo (2) subscribing witnesses.

WILLIAM J. l VRIGHT.

Witnesses:

WILLIAM J. WRIGHT, Jr. B. CHALMERs.

